I used the setx command to set OGRE_HOME:
setx OGRE_HOME D:\\Program Files\\OgreSDK
Now I need to change to value
Command Prompt is giving you that error because you forgot the quotation marks. You should’ve typed:
setx OGRE_HOME “D:\Program Files\OgreSDK”
To see all the values you’ve already set, enter either:
reg query "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment"
OR
reg query HKEY_CURRENT_USER\Environment